/Engine/Source/Editor/UnrealEd/Public/WorkflowOrientedApp/WorkflowUObjectDocuments.h
Returns TRUE if the payload is valid
virtual bool IsPayloadValid ( [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FTabPayload](API\Editor\UnrealEd\WorkflowOrientedApp\FTabPayload) > Payload ) const